There is so much information and noise out there, might be helpful to just find a local community to get your feet wet. 

Hello friends,I am a new BRRRR real estate investor working and living in Germany.Just incorporated LLC in US and willing to buy my first rental property soon, The question here is the "Refinancing" part, As far as I learned that I cannot refinance unless I have a credit score, right?

As far as calculating in your head, when the OP is asking a question like "What is the minimum rate of return I should be looking for to make a flip worth it?" 

This is why doing a live in flip is so valuable.

As far as neighborhoods to avoid, I would steer clear of McKeesport, Aliquippa, and McKees Rocks.

, which is indicative of either the broker having  no idea of what an appraisal entails and how it relates to the subject property or the mortgage broker is so weak that he is afraid to educate the borrower as to the reality of obtaining commercial loans without appraisals.

First thing I think of as far as an opportunity will be people trying to find a property that is going to foreclose and has multiple heirs/  Find an heir pay them $ for a quit claim and then force sale and get $$$ from the sale based on your % of ownership.

Having a great property manager is so important.

That’s an interesting idea as far as using equity towards the next down payment.

I would guess the price they are willing to pay is so low, probably 30% APR, you wouldn't find anything you could make money on.